Generation IV External Engine - nasty vibration and belt is coming off...



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VGLNTE1
10-29-2009, 08:40 AM
I have been fighting this vibration for a while now. at speeds of 90mph it shakes pretty bad. may be the front tires, I dunno.

But today I pulled up to a stop sign, and gave a little gas. at 2000RPM's the car shook way bad. I pull over shorty after and notice my belt is half off my idler pulley. If the belt is walking off, does that mean the pulley is walking off? It has an ARP bolt and is keyed to the crank...any ideas?

2002 MN6 corvette

Johnnystock
10-29-2009, 12:08 PM
There has been some cases of aftermarket pulley having problems, maybe its your case..
VGLNTE1
10-29-2009, 12:26 PM
There has been some cases of aftermarket pulley having problems, maybe its your case..

this is a keyed stock pulley

Jontall
10-29-2009, 03:32 PM
The bolt got loose... It happened to me.
wadd
10-29-2009, 07:06 PM
I don't know squat about this, but maybe inspect the damper to see if the outer ring is coming loose from the hub due to rubber degradation.